Hair-waving heater



Nov. 1, 1938. G. FREUDENBERG I 2,134,869

HAIR WAVING HEATER Filed June 25. 1936 P INVENTOR.

Q0 77 7 0120 Fzauaawezea ATTORNEYS Patented Nov. 1, 1938 UNITED STATES PATENT OFFICE to The Nestle-Lemur Company,

New York,

N. Y., a corporation of Ohio Application June 23, 1936, Serial No. 86,770

13 Claims.

The present invention relates to heaters for hair waving, and it particularly relates to heaters for processes of hair waving known as Croquignole, in which the heaters are preheated before application to the hair to be steamed or waved.

The present application is similar in subject matter to applications Serial Nos. 62,094 and 62,095 filed February 3, 1936, and Serial No. 69,641 filed March 19, 1936, and is a continuation in part of application Serial No. 62,094.

Although not restricted thereto, the heater of the present application will be particularly described in connection with the hair waving processes and apparatus described and shown in said i above mentioned applications, in which the hair on the head of the customer or client to be waved is separated into strands, inserted through a hair protector, clamped closely adjacent the scalp and then tightly wound upon a curling rod which is held upon said clamp.

With the hair tightly coiled upon said curling rod, a moistened pad construction having an absorbent face of felt or flannel to contact with the hair and an impermeable backing of parchment paper and/or foil is placed upon the coil of hair and pressed upon said coil in such a way as to conform thereto.

A heater which has been electrically preheated in then placed upon the coil encased in the moistened pad, said heater having previously been elevated to a temperature of between 600 and 750 F.

This preheated heater will elevate the moistened pad and the hair to steaming temperature.

The hair coil enclosed in the pad will be maintained at such steaming temperature for two to three minutes until the hair has been satisfactorily affected and then the heater and pad will be removed permitting the hair to cool.

In designing a heater to be preheated, it is necessary that it be capable of standing considerable handling and that it be of such a con struction that it may receive heat from a heating device and also readily transfer such heat to the prepared and pad-enclosed coil of hair to be waved.

It is also necessary that the heater take up the heat from the heater device with satisfactory rapidity, retain sufiicient heat to enable the hair to be effectively steamed and transfer such heat substantially uniformly to the pad-enclosed coil of hair.

Other objects will be obvious or will appear during the course of the specification.

In accomplishing the above objects, it has been found most satisfactory, according to one embodiment of the present invention, to form a heat storing, receiving and distributing device having two elongated partially cylindrical jaw members, which may be intermedially bulged to conform more closely to the shape of a coil of hair.

These jaw members are preferably caused to abut against each other at the extremities of one longitudinal edge and they are normally pivotally connected together by two metallic plate members. These members carry a pivot rod, which receives the coil springs reacting against the metallic plate members. Two insulating handle members are attached to said pivot connecting members.

The jaws are preferably made of aluminum or magnesium alloy, which may contain small amounts of manganese, and in one construction of the metal may be made of Dow metal or some similar alloy, for example, containing aluminum, magnesium, and manganese.

The above and other objects will appear more clearly from the following detailed description, which when taken in connection with the accompanying drawing, will illustrate preferred embodiments of the inventive idea.

Referring to the drawing:

Figure 1 is a side view with one of the handle members partly broken away and with the heater rod illustrated in dotted lines.

Figure 2 is a cross sectional view upon the line 2-2 of Figure 1.

Figure 3 is a bottom view upon the line 3-3 of Figure 1.

Figure 4 is a perspective view illustrating how the hair is prepared and enclosed in the pad before application of the heater.

Figure 5 is a perspective view upon enlarged scale illustrating how the heater is applied to the hair prepared as in Figure l.

The heaters A, as shown in Figures 1 and 2, are each provided with the two alloy-metal heatstoring jaws Ill, the alloy metal, for example, being metal known as Dow metal, or some other alloy, for example, containing magnesium and small amounts of aluminum and manganese.

The edges I I and I2 of these jaws H] are rounded as shown in Figure 2, and they are intermedially bulged at l3 and M in Figures 1 and 3 to accommodate the shape of the coil of hair B which is usually of maximum protuberance at the middle portion of the curling rod D (see Figure 4).

To the outside faces l5 of the jaws ID are attached the spacer pins or rivets I6 which have enlarged heads I! and reduced shanks l8, the inner ends of which shanks are riveted into the recesses 19 on the inside faces 20 of the heater.

Inside of the heads ll of the rivets 16 are rigidly held the ends 2| of the arms 22 which arms are integral and extend downwardly from the mounting plates 23. The arms 22 are reinforced by the rib I22 (see Figure 1),

The heads of the bolts 25 are enlarged as indicated at 21, (see Figure 2), and these enlarged heads are molded directly in the material of the finger pieces C. The shanks of the bolts 25 are threaded and extend through the plate portions 24 and at their inner ends they receive the nuts 28 which clamp the plates 23 to the finger pieces C.

The plates are also provided with the openings 29 (see Figure 1), which receive the protuberances 30 molded integrally with the finger pieces C. The protuberances 30, together with the bolts 25, serve to locate the plates 23 in respect to the finger pieces C.

The sides of the plates 23 are provided with inturned ears 3|, which receive the pivot rod 32. The pivot rod 32 receives the coil springs 33, the legs 34 and 35 of which press the two plate portions 24 apart and the jaws I!) together.

To hold the outside legs 35 in position, the inturned ears 36 are provided, said inturned ears being stamped out integrally from the plates 23.

The grooves or embossments 31, which extend obliquely across the corners of the plates 23, act as spacers to form the space 38 (see Figure 2). The spacers 31 limit the contact between the finger pieces C and the plates 23.

By spacing the arms 22 from the jaws 10 by the rivets l6 and the plates 23, from the finger pieces C by the grooves 31, the heat is more effectively retained in the jaws l0, and at the same time, the finger pieces C do not tend to become readily heated even though the jaws Ill be elevated to a temperature of 600 to 750 F.

The finger pieces C are provided with slots 39 and 40, the outside area 4| of the finger pieces around the slots 40, preferably being grooved and corrugated to enable a convenient finger grip thereon.

The slots 39 and 40, as shown in Figures 1 and 2, limit or decrease the amount of heat which may be transmitted from the heater jaws 10 to the portion of the finger pieces C around the grooves 40, which is handled by the operator.

It will be noticed that the jaws ll! of the heater A of Figures 1 and 2, are curved not only so as conveniently to grip the coil of hair B, indicated in Figure 4, but also the heating rod E, as shown in Figures 1 and 2, the operation of which rod is fully described in connection with the copending applications, Serial Nos. 62,094 and 62,095, above referred to.

Among the preferred alloys which may be utilized for the jaws are those containing about 86 to 93% magnesium, 4 to 6% of aluminum and to of manganese.

In one construction which has been found satisfactory the cylindrical metal jaws or heat-storing members ID are made about 2 inches in length, about to of an inch in thickness and about inch in width and have a weight of about 16 grams or between 14 to 18 grams.

In operation, the strand of hair is first inserted through a protector P, such as described and claimed in the copending application, Serial No. 62,094 filed February 3, 1936, and then is clamped by the device M, more fully shown and described in the Seiter Patent No. 1,919,282, issued July 1933, and in the copending application Serial No. 52,520, filed December 2, 1935.

The strand of hair is then tightly wound upon the curling rod D (see Figures 4 and 5) and is enclosed in the pad F in the manner more fully shown and described in the copending application Serial No. 62,094 filed February 3, 1936.

The heater device A, in the meanwhile, has been raised to a suitable temperature ranging from 600 to 750 F. by the electrical heater rod E which may be connected in a machine as more fully shown and described in the copending application, Serial No. 62,094 filed February 3, 1936, and in a circuit more fully described in application Serial No. 62,095 filed February 3, 1936.

When the heater A has been elevated to a satisfactory temperature, it is removed from the rod E and placed upon the hair coil B in the manner indicated in Figure 5, and it is permitted to remain upon the hair coil for two or three minutes to cause sufficient steaming and heating thereof to result in an effective permanent wave being given.

The bulged formation indicated at 13 and I4 of Figures 1 and 3 not only assures conformation of the heater jaws 10 to the hair coil B when encased in the pad F, but also enables more effective cooperation with the rod E when the coil of said rod is elevated in temperature to cause heating of said jaws l0.

It is apparent that the specific illustrations shown above have been given by way of illustration and not by Way of limitation and that the structures above described are subject to wide variation and modification without departing from the scope or intent of the invention, all of which variations and modifications are to be included within the scope of the present invention.

What is claimed is:

1. A permanent hair waving heater comprising two elongated partial cylindrical curved alloy jaws, said elongated jaws converging together toward their side end portions and being most widely spaced apart at their central portions to conform to the shape of a coil of hair, insulating handles rigidly connected to said jaws, intermediate metal connecting plates positioned between and spaced from both said jaws and said handles, said jaws being of an aluminum alloy and said handles being of a molded insulating plastic.

2. A permanent hair waving heater comprising two elongated partial cylindrical curved a1- loy jaws, said elongated jaws converging together toward their side end portions and being most widely spaced apart at their central portions to conform to the shape of a coil of hair, insulating handles rigidly connected to said jaws, intermediate metal connecting plates positioned between and spaced from both said jaws and said handles.

3. A permanent hair waving heater comprising two elongated partial cylindrical curved alloy jaws, said elongated jaws converging together toward their side end portions and being most widely spaced apart at their central portions to conform to the shape of a coil of hair, insulating handles rigidly connected to said jaws, intermediate metal connecting plates positioned between and spaced from both said jaws and said handles, said metal plates being provided with inturned ears, a pivot rod connecting said inturned ears and serving as a pivot mount between said jaws and handles, and biasing spring means associated with said pivot rod to separate said handles and press together said aws.

4. A permanent hair waving heater comprising two elongated partial cylindrical curved alloy jaws, said elongated jaws converging together toward their side end portions and being most widely spaced apart at their central por tions to conform to the shape of a coil of hair, insulating handles rigidly connected to said jaws, intermediate metal connecting plates between said jaws and said handles, said connecting plates being provided with spacer means at their points of connection to said jaws and said handles so that the amount of heat transferred from said jaws to said handles will be reduced to a minimum.

5. A permanent hair waving heater comprising two elongated partial cylindrical curved al- 10y jaws, said elongated jaws converging together toward their side end portions and being most widely spaced apart at their central portions to conform to the shape of a coil of hair, insulating handles rigidly connected to said jaws, intermediate metal connecting plates between said jaws and said handles, said connecting plates being positioned inside of said handles at their upper ends and outside of said jaws at their lower ends, said upper and lower ends being respectively parallel to said handles and said jaws, and spaced respectively therefrom. and said plates being of bifurcated construction and being riveted to the ends of said jaws.

6. A hair waving heater of the type described being adapted to be preheated to a relatively elevated temperature of 600 to 750 F. before application to the hair and which is adapted to be applied to the hair after said hair has been clamped and coiled in strands upon curling rods and has been encased in a hair waving pad moistened with a hair waving lotion, said heater having handle members to enable handling by the operator, longitudinally bulged heat storing jaw members to be received by a preheater member to store the heat and to transfer the heat to the prepared coil of hair, said jaw members having a cylindrical contour and being elongated and converging together at their end portions and being most widely spaced from each other at their intermediate portions to conform to the shape of a coil of hair, connecting plates extending between the heat storing members and the handle members, a pivot mount member between said connecting plates, and resilient means to bias said handle members apart and said heat storing members together.

7. A hair waving heater of the type described, being adapted to be preheated to a relatively elevated temperature of 600 to 750 F. before application to the hair and which is adapted to be applied to the hair after said hair has been clamped and coiled in strands upon curling rods and has been encased in a hair waving pad moistened with a hair waving lotion, said heater having handle members to enable handling by the operator, longitudinally bulged heat storing jaw members to be received by a preheater member to store the heat and to transfer the heat to the prepared coil of hair, said jaw members having a cylindrical contour and being elongated and converging together at their end portions and being most widely spaced from each other at their intermediate portions to conform to the shape of a coil of hair, connecting plates extending between the heat storing members and the handle members, a pivot mount member between said connecting plates, and resilient means to bias said handle members apart and said heat storing members together, said connecting plates being spaced from said handle members and said heat storing members at the points of connection thereto so as to limit the transference of heat therebetween.

8. A hair waving heater of the type described, being adapted to be preheated to a relatively elevated temperature of 600 to 750 F. before application to the hair and which is adapted to be applied to the hair after said hair has been clamped and coiled in strands upon curling rods and has been encased in a hair waving pad moistened with a hair waving lotion, said heater having handle members to enable handling by the operator, longitudinally bulged heat storing jaw members to be received by a preheater member to store the heat and to transfer the heat to the prepared coil of hair, said jaw members having a cylindrical contour and being elongated and converging together at their end portions and being most widely spaced from each other at their intermediate portions to conform to the shape of a coil of hair, connecting, plates extending between the heat storing members and the handle members, a pivot mount between said connecting plates, and resilient means to bias said handle members apart and said. heat storing members together, said handle members being formed of a molded plastic material of insulating characteristics and said heat storing members being formed of a magnesium alloy.

9. A hair waving heater of the type described, being adapted to be preheated to a relatively elevated temperature of 600 to 750 F. before application to the hair and which is adapted to be applied to the hair after said hair has been clamped and coiled in strands upon curling rods and has been encased in a hair waving pad moistened with a hair waving lotion, said heater having handle members to enable handling by the operator, longitudinally bulged heat storing jaw members to be received by a preheater member to store the heat and to transfer the heat to the prepared coil of hair, said jaw members having a cylindrical contour and being elongated and converging together at their end portions and being most widely spaced from each other at their intermediate portions to conform to the shape of a coil of hair, connecting plates extending between the heat storing members and the handle members, a pivot mount member between said connecting plates, and resilient means to bias said handle members apart and said heat storing members together, said jaw members consisting of partial cylindrical elements of a metal alloy having suitable heat capacity.

10. A hair waving heater of the type described, being adapted to be preheated to a relatively elevated temperature of 600 to 750 F. before application to the hair and which is adapted to be applied to the hair after said hair has been clamped and coiled in strands upon curling rods and has been encased in a hair waving pad moistened with a hair waving lotion, said heater having handle members to enable handling by the operator, longitudinally bulged heat storing jaw members to be received by a preheater member to store the heat and to transfer the heat to the prepared coil of hair, connecting plates extending between the heat storing members and the handle members, a pivot mount member between said connecting plates, and resilient means to bias said handle members apart and said heat storing members together, said heat storing members being formed of a magnesium alloy and taking the shape of partial cylindrical elements of about two to three inches in length, about one-sixteenth to one-quarter inch in thickness and about one-half to one inch in width and having a weight of about ten to twenty grams.

11. A hair waving heater of the type described, being adapted to be preheated to a relatively elevated temperature of 600 to 750 F. before application to the hair and which is adapted to be applied to the hair after said hair has been clamped and coiled in strands upon, curling rods and has been encased in a hair waving pad moistened with a hair waving lotion, said heater having handle members to enable handling by the operator, longitudinally bulged heat storing jaw members to be received by a preheater member to store the heat and to transfer the heat to the prepared coil of hair, said jaw members having a cylindrical contour and being elongated and converging together at their end portions and being most widely spaced from each other at their intermediate portions to conform to the shape of a coil of hair, connecting plates extending between the heat storing members and the handle members, a pivot mount member between said connecting plates, and resilient means to bias said handle members apart and said heat storing members together, said connecting plates being bifurcated and being riveted to the ends of said heat storing members and being bolted to said handle members.

12- A hair waving heater of the type described, being adapted to be preheated to a relatively elevated temperature of 600 to 750 F. before application to the hair and which is adapted to be applied to the hair after said hair has been clamped and coiled in strands upon curling rods and has been encased in a hair waving pad moistened with a hair waving lotion, said heater having handle members to enable handling by the operator, longitudinally bulged heat storing jaw members to be received by a preheater member to store the heat and to'transfer the heat to the prepared coil of hair, said jaw members having a cylindrical contour and being elongated and converging together at their end portions and being most widely spaced from each other at their intermediate portions to conform to the shape of a coil of hair, connecting plates extending between the heat storing members and the handle members, a pivot mount member between said connecting plates, and resilient means to bias said handle members apart and said heat storing members together, said connecting plates being provided with inturned ears and said pivot mount member consisting of a rod extending through said. ears and receiving coil springs, the ends of which springs press against the handle members to separate them thereby pressing the heat storing members together.

13. A hair waving heater of the type described, being adapted to be preheated to a relatively elevated temperature of 600 to 750 F. before application to the hair and which is adapted to be applied to the hair after said hair has been clamped and coiled in strands upon curling rods and has been encased in a hair waving pad moistened with a hair waving lotion, said heater having handle members to enable handling by the operator, longitudinally bulged heat storing jaw members to be received by a preheater member to store the heat and to transfer the heat to the prepared coil of hair, said jaw members having a cylindrical contour and being elongated and converging together at their end portions and being most widely spaced from each other at their intermediate portions to conform to the shape of a coil of hair, connecting plates eX- tending between the heat storing members and the handle members, a pivot mount member between said connecting plates, and resilient means to bias said handle members apart and said heat storing members together, said connecting plates being bolted to said handle members.

GO'IIHARD FREUDENBERG. 

